package com.sky.controller.admin;

import com.sky.dto.CategoryPageQueryDTO;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.mapper.DishMapper;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.annotations.Delete;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController
@RequestMapping("/admin/dish")
@Slf4j
@Api(tags = "菜品相关接口")
public class DishController {

    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate<Object, Object> redisTemplate;

    @PostMapping
    @ApiOperation("新增菜品")
    public Result<String> save(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品，{}", dishDTO);
        dishService.saveWithFlavor(dishDTO);

        //清理缓存数据
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);
        return Result.success();
    }

    /*菜品分页查询*/
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO) {
        log.info("菜品分页查询,参数为:,{}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /*批量删除菜品*/
    /**
     * 在dish表中删除菜品基本数据时，同时，也要把关联在dish_flavor表中的数据一块删除。
     * setmeal_dish表为菜品和套餐关联的中间表。
     * 若删除的菜品数据关联着某个套餐，此时，删除失败。
     * 若要删除套餐关联的菜品数据，先解除两者关联，再对菜品进行删除。
     */
    @DeleteMapping
    @ApiOperation("批量删除菜品")
    public Result<String> deleteBatch(@RequestParam List<Long> ids) {
        log.info("批量删除菜品：{}", ids);
        dishService.deleteBatch(ids);

        //将所有的菜品缓存数据清理掉,所有以dish_开头的key
        cleanCache("dish_*");
        return Result.success();
    }

    /*根据id查询菜品*/
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getById(@PathVariable Long id) {
        log.info("根据id查询菜品,{}", id);
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    /*修改菜品*/
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO) {
        log.info("修改菜品，{}", dishDTO);
        dishService.updateWithFlavor(dishDTO);
        //将所有菜品的缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");
        return Result.success();
    }

    /*菜品起售停售*/
    @PostMapping("/status/{status}")
    @ApiOperation("菜品起售停售")
    public Result updateStatus(@PathVariable Integer status,Long id) {
        log.info("菜品起售停售 {}", status);
        dishService.dishOnOrOff(status,id);
        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");
        return Result.success();
    }

    /*根据分类id查询菜品*/
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
       log.info("根据分类id查询菜品,{}", categoryId);
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }
    /**
     * 清理缓存数据
     * @param pattern
     */
    private void cleanCache(String pattern){
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }


}
